On Tue, Apr 26, 2016 at 10:01 AM, <peakgraph...@gmail.com> wrote: > I am wondering how to make my code function so it does not allow any of the > same values to be entered into a column in my CSV file created through > python. So I need to read into the CSV file and check if any names have > already been entered. If they have, the user must not be allowed to enter > this value.
Assuming the file is reasonably small enough to fit into memory, create a set and populate it with the values in the column. When the user enters a new value, check whether it's already in the set. -- https://mail.python.org/mailman/listinfo/python-list
